Phase formation and local charge transport of lead-free CH3NH3Sn(I1−xBrx)3 (0 ≤ x ≤ 1)perovskite solar cells fabricated by solvent optimization

Bich Phuong Nguyen; Dongguen Shin; Hye Ri Jung; Juran Kim; Trang Thi Thu Nguyen; Seokhyun Yoon; Yeonjin Yi; William Jo

doi:10.1016/j.solener.2019.05.007

Phase formation and local charge transport of lead-free CH₃NH₃Sn(I_1−xBr_x)₃ (0 ≤ x ≤ 1)perovskite solar cells fabricated by solvent optimization

Bich Phuong Nguyen, Dongguen Shin, Hye Ri Jung, Juran Kim, Trang Thi Thu Nguyen, Seokhyun Yoon, Yeonjin Yi, William Jo

Department of Physics

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The perovskite layer is the most crucial factor for the high performance tin-based perovskite. Herein, we investigate the effect of solvent on the morphology of perovskite films systematically. Dimethyl sulfoxide (DMSO)has been adopted as a high boiling point combined with the commonly used N,N-dimethylformamide (DMF)to control the rapid nucleation and retarding crystal growth. A pinhole-free MASnI₃ perovskite film with dense and large grains is obtained. By optimizing the solvent composition, multiple tin-based mixed iodine and bromine perovskite solar cells (MASn(I_1−xBr_x)₃ 0 ≤ x ≤ 1)were fabricated. The best photoconversion cell efficiency was obtained at x = 0.67, which yields to 3.20% compared to the original MASnI₃ (1.17%)due to the benefit band level alignment. The conductivity and the stability of the MASn(I_1−xBr_x)₃ perovskite device was carefully studied.

Original language	English
Pages (from-to)	136-144
Number of pages	9
Journal	Solar Energy
Volume	186
DOIs	https://doi.org/10.1016/j.solener.2019.05.007
Publication status	Published - 2019 Jul 1

Bibliographical note

Funding Information:
This research was supported by a grant ( NRF-2018R1A2B2003607 ) under a basic science research program through the NRF funded by the Ministry of Science, Technology , and ICT, Republic of Korea . This research was also supported by the Basic Science Research Program through the NRF funded by the Ministry of Education ( NRF-2018R1A6A1A03025340 ). In addition, the work at Yonsei University was supported by NRF (NRF-2017R1A2B4002442) and the Graduate School of Yonsei University Research Scholarship Grants in 2018.

Publisher Copyright:
© 2019

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Materials Science(all)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.solener.2019.05.007

Cite this

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title = "Phase formation and local charge transport of lead-free CH3NH3Sn(I1−xBrx)3 (0 ≤ x ≤ 1)perovskite solar cells fabricated by solvent optimization",

abstract = "The perovskite layer is the most crucial factor for the high performance tin-based perovskite. Herein, we investigate the effect of solvent on the morphology of perovskite films systematically. Dimethyl sulfoxide (DMSO)has been adopted as a high boiling point combined with the commonly used N,N-dimethylformamide (DMF)to control the rapid nucleation and retarding crystal growth. A pinhole-free MASnI3 perovskite film with dense and large grains is obtained. By optimizing the solvent composition, multiple tin-based mixed iodine and bromine perovskite solar cells (MASn(I1−xBrx)3 0 ≤ x ≤ 1)were fabricated. The best photoconversion cell efficiency was obtained at x = 0.67, which yields to 3.20% compared to the original MASnI3 (1.17%)due to the benefit band level alignment. The conductivity and the stability of the MASn(I1−xBrx)3 perovskite device was carefully studied.",

author = "Nguyen, {Bich Phuong} and Dongguen Shin and Jung, {Hye Ri} and Juran Kim and Nguyen, {Trang Thi Thu} and Seokhyun Yoon and Yeonjin Yi and William Jo",

note = "Funding Information: This research was supported by a grant ( NRF-2018R1A2B2003607 ) under a basic science research program through the NRF funded by the Ministry of Science, Technology , and ICT, Republic of Korea . This research was also supported by the Basic Science Research Program through the NRF funded by the Ministry of Education ( NRF-2018R1A6A1A03025340 ). In addition, the work at Yonsei University was supported by NRF (NRF-2017R1A2B4002442) and the Graduate School of Yonsei University Research Scholarship Grants in 2018. Publisher Copyright: {\textcopyright} 2019",

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AU - Nguyen, Bich Phuong

AU - Shin, Dongguen

AU - Jung, Hye Ri

AU - Kim, Juran

AU - Nguyen, Trang Thi Thu

AU - Yoon, Seokhyun

AU - Yi, Yeonjin

AU - Jo, William

N1 - Funding Information: This research was supported by a grant ( NRF-2018R1A2B2003607 ) under a basic science research program through the NRF funded by the Ministry of Science, Technology , and ICT, Republic of Korea . This research was also supported by the Basic Science Research Program through the NRF funded by the Ministry of Education ( NRF-2018R1A6A1A03025340 ). In addition, the work at Yonsei University was supported by NRF (NRF-2017R1A2B4002442) and the Graduate School of Yonsei University Research Scholarship Grants in 2018. Publisher Copyright: © 2019

PY - 2019/7/1

Y1 - 2019/7/1

N2 - The perovskite layer is the most crucial factor for the high performance tin-based perovskite. Herein, we investigate the effect of solvent on the morphology of perovskite films systematically. Dimethyl sulfoxide (DMSO)has been adopted as a high boiling point combined with the commonly used N,N-dimethylformamide (DMF)to control the rapid nucleation and retarding crystal growth. A pinhole-free MASnI3 perovskite film with dense and large grains is obtained. By optimizing the solvent composition, multiple tin-based mixed iodine and bromine perovskite solar cells (MASn(I1−xBrx)3 0 ≤ x ≤ 1)were fabricated. The best photoconversion cell efficiency was obtained at x = 0.67, which yields to 3.20% compared to the original MASnI3 (1.17%)due to the benefit band level alignment. The conductivity and the stability of the MASn(I1−xBrx)3 perovskite device was carefully studied.

AB - The perovskite layer is the most crucial factor for the high performance tin-based perovskite. Herein, we investigate the effect of solvent on the morphology of perovskite films systematically. Dimethyl sulfoxide (DMSO)has been adopted as a high boiling point combined with the commonly used N,N-dimethylformamide (DMF)to control the rapid nucleation and retarding crystal growth. A pinhole-free MASnI3 perovskite film with dense and large grains is obtained. By optimizing the solvent composition, multiple tin-based mixed iodine and bromine perovskite solar cells (MASn(I1−xBrx)3 0 ≤ x ≤ 1)were fabricated. The best photoconversion cell efficiency was obtained at x = 0.67, which yields to 3.20% compared to the original MASnI3 (1.17%)due to the benefit band level alignment. The conductivity and the stability of the MASn(I1−xBrx)3 perovskite device was carefully studied.

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Phase formation and local charge transport of lead-free CH₃NH₃Sn(I_1−xBr_x)₃ (0 ≤ x ≤ 1)perovskite solar cells fabricated by solvent optimization

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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Phase formation and local charge transport of lead-free CH3NH3Sn(I1−xBrx)3 (0 ≤ x ≤ 1)perovskite solar cells fabricated by solvent optimization

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

Access to Document

Other files and links

Fingerprint

Cite this

Phase formation and local charge transport of lead-free CH₃NH₃Sn(I_1−xBr_x)₃ (0 ≤ x ≤ 1)perovskite solar cells fabricated by solvent optimization